FontChooserpublic class FontChooser extends JDialog implements ActionListener
| Fields Summary |
|---|
| JColorChooser | colorChooser | | JComboBox | fontName | | JCheckBox | fontBold | | JCheckBox | fontItalic | | JTextField | fontSize | | JLabel | previewLabel | | SimpleAttributeSet | attributes | | Font | newFont | | Color | newColor |
| Constructors Summary |
|---|
public FontChooser(Frame parent)
super(parent, "Font Chooser", true);
setSize(400, 400);
attributes = new SimpleAttributeSet();
// make sure that any way they cancel the window does the right thing
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
closeAndCancel();
}
});
// Start the long process of setting up our interface
Container c = getContentPane();
JPanel fontPanel = new JPanel();
fontName = new JComboBox(new String[] {"TimesRoman",
"Helvetica", "Courier"});
fontName.setSelectedIndex(1);
fontName.addActionListener(this);
fontSize = new JTextField("12", 4);
fontSize.setHorizontalAlignment(SwingConstants.RIGHT);
fontSize.addActionListener(this);
fontBold = new JCheckBox("Bold");
fontBold.setSelected(true);
fontBold.addActionListener(this);
fontItalic = new JCheckBox("Italic");
fontItalic.addActionListener(this);
fontPanel.add(fontName);
fontPanel.add(new JLabel(" Size: "));
fontPanel.add(fontSize);
fontPanel.add(fontBold);
fontPanel.add(fontItalic);
c.add(fontPanel, BorderLayout.NORTH);
// Set up the color chooser panel and attach a change listener so that color
// updates get reflected in our preview label.
colorChooser = new JColorChooser(Color.black);
colorChooser.getSelectionModel()
.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent e) {
updatePreviewColor();
}
});
c.add(colorChooser, BorderLayout.CENTER);
JPanel previewPanel = new JPanel(new BorderLayout());
previewLabel = new JLabel("Here's a sample of this font.");
previewLabel.setForeground(colorChooser.getColor());
previewPanel.add(previewLabel, BorderLayout.CENTER);
// Add in the Ok and Cancel buttons for our dialog box
JButton okButton = new JButton("Ok");
okButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
closeAndSave();
}
});
JButton cancelButton = new JButton("Cancel");
cancelButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
closeAndCancel();
}
});
JPanel controlPanel = new JPanel();
controlPanel.add(okButton);
controlPanel.add(cancelButton);
previewPanel.add(controlPanel, BorderLayout.SOUTH);
// Give the preview label room to grow.
previewPanel.setMinimumSize(new Dimension(100, 100));
previewPanel.setPreferredSize(new Dimension(100, 100));
c.add(previewPanel, BorderLayout.SOUTH);
|
| Methods Summary |
|---|
| public void | actionPerformed(java.awt.event.ActionEvent ae)
// Check the name of the font
if (!StyleConstants.getFontFamily(attributes)
.equals(fontName.getSelectedItem())) {
StyleConstants.setFontFamily(attributes,
(String)fontName.getSelectedItem());
}
// Check the font size (no error checking yet)
if (StyleConstants.getFontSize(attributes) !=
Integer.parseInt(fontSize.getText())) {
StyleConstants.setFontSize(attributes,
Integer.parseInt(fontSize.getText()));
}
// Check to see if the font should be bold
if (StyleConstants.isBold(attributes) != fontBold.isSelected()) {
StyleConstants.setBold(attributes, fontBold.isSelected());
}
// Check to see if the font should be italic
if (StyleConstants.isItalic(attributes) != fontItalic.isSelected()) {
StyleConstants.setItalic(attributes, fontItalic.isSelected());
}
// and update our preview label
updatePreviewFont();
| | public void | closeAndCancel()
// erase any font information and then close the window
newFont = null;
newColor = null;
setVisible(false);
| | public void | closeAndSave()
// save font & color information
newFont = previewLabel.getFont();
newColor = previewLabel.getForeground();
// and then close the window
setVisible(false);
| | public javax.swing.text.AttributeSet | getAttributes() return attributes;
| | public java.awt.Color | getNewColor() return newColor;
| | public java.awt.Font | getNewFont() return newFont;
| | protected void | updatePreviewColor()
previewLabel.setForeground(colorChooser.getColor());
// manually force the label to repaint
previewLabel.repaint();
| | protected void | updatePreviewFont()
String name = StyleConstants.getFontFamily(attributes);
boolean bold = StyleConstants.isBold(attributes);
boolean ital = StyleConstants.isItalic(attributes);
int size = StyleConstants.getFontSize(attributes);
//Bold and italic don't work properly in beta 4.
Font f = new Font(name, (bold ? Font.BOLD : 0) +
(ital ? Font.ITALIC : 0), size);
previewLabel.setFont(f);
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